Thomas John Campbell (born August 14, 1952) is an American academic, educator, and politician.
He is Professor of Law at the Dale E.
Fowler School of Law, and a Professor of Economics at the George Argyros School of Business and Economics, at Chapman University, in Orange, California.
He was Dean of Chapman University School of Law from 2011–16, Director of Finance for the State of California from 2004 to 2005, a former five-term Republican United States Congressman from California's 12th and 15th districts, former member of the California State Senate, a former professor at Stanford Law School, former dean of the Haas School of Business, and former professor of business administration at the University of California, Berkeley.
In 2000 he retired from his House seat to run for the U.S.
Senate but lost decisively to incumbent Dianne Feinstein.
On June 8, 2010, he lost his third bid for the United States Senate, campaigning once again for the seat held by Democrat Barbara Boxer but losing the Republican nomination to Carly Fiorina.
Campbell is a member of the ReFormers Caucus of Issue One.